0 like 0 dislike
5.9k views
正三角形的面積公式是[4分之根號3乘a平方],請設計一個程式,讓使用者輸入正三角形的邊長,然後輸出正三角形的面積,輸出時請輸出並四捨五入到小數點後兩位。

範例輸入:

8

範例輸出:

21.71
[Normal] Coding (C) - asked in 2016-1 程式設計(一)AC by (18k points)
ID: 13422 - Available when: Unlimited - Due to: Unlimited
3 flags | 5.9k views
0 0
Called for Help

35 Answers

0 like 0 dislike
Hidden content!
#include<stdio.h>
* * * *** * ***

int main()

{
* * * * * * * *** a;
* ** ***** * *** * ** A;
*** * * * * ***** * ** *** **** **** * &a);
*** * ** * * * * *
* * ** * * ** * * ***** * ** * ***
*** * * * ** * * ****
* * * *** **** * ** ***** * 0;
* * *** * ** ** *

}
answered by (-124 points)
0 like 0 dislike
Hidden content!
* *** ***** * ****
* *** *** * *





 int main ()

{
** *** ***** *** * * ** *** * a,b;
******* ** * * ****** * ***** * * &a);


** * * * * ***** ** ** * * *** * = sqrtf(3)/4*(a*a);


**** ** * * *** *** **** * ** * **** * *


* * * ** ** *** * 0;

}
answered by (-383 points)
0 like 0 dislike
Hidden content!
*** ***** ** * *
* *** * * *



 main()

{
*** ** ***** ** * *


** * * * *** * * * *** * ***


* ** * ** ** ****




** * * *** **** * * *

}
answered by (-383 points)
0 like 0 dislike
Hidden content!
** *** * ******
** * * ** *****
* * * **** *

int main()

{

float ***
* * * * * * ** * * * *

b = * * *
*** ** * ** ** *** *** *






****** * * system * * * * * * **
* ** ** ** return 0;
** *
answered by (-136 points)
0 like 0 dislike
Hidden content!
* * * * **** *
** ** * *
*** ** * **** **





int main(){


* ** * **** ** ** ** * * i, a, j;
*** ** ** ** **** ** * *** ** * * ** * * *


** ** * * * **** = sqrt(3) / 4;


* * * **** * *** = i * (a * a);


****** ** ** ********** *** *** * ** *** * j);



return 0;

}
answered by (-105 points)
0 like 0 dislike
Hidden content!
** * **** **** * **
* ** *** * * * *





 int main ()

{
* *** *** * * * ** * * a,b;
* ** ** *** ***** * * *** * * * *** * * &a);


* *** * ** ** * *** ** = sqrtf(3)/4*(a*a);


*** * * ******* ****** ** *** **** *** ***


**** **** * * ** 0;

}
answered by (-143 points)
0 like 0 dislike
Hidden content!
*** * * **** *** ***
* * ** * * * *





 int main ()

{
* * * ** **** ** * ** ****** * a,b;
** * * **** * ** * * *** ******* * &a);


* *** * * ** * * * ** *** = sqrt(3)/4*(a*a);


**** * * *** ** * **** *** ** *** * * * **


** *** * **** 0;

}
answered by (-143 points)
0 like 0 dislike
Hidden content!
#include ** ** ** *** *

#include ** *** ** *

#include * **** * *



int main()

{
**** ** * * ***** * a;
** * * * *** * * *** ** * ** ** ***
* *** * ** * ** * * *** * ** **** ** * *****
* * ****** * * **** * 0;

}
answered by (-85 points)
0 like 0 dislike
Hidden content!
#include <stdio.h>

int main()

{
* * * ** ***** * * * * **** a;
*** * * ***** ** ** * * area;
* * * ** * ***
* * * *** ** ** ** ** **** ** *** ** *** *
* **** * * * *** ** * * * *
* * ******** ** ** * * * * * *

 }
answered by (-124 points)
0 like 0 dislike
Hidden content!
#include <stdio.h>

#include * *** * * *

#include <math.h>

int main()

{
* **** * * ** ** *** ** a, b;
* * ** ** * *** ***** * *** ** * *
* ** ** *** ******** **** * * ** ** *
** ** * * * * * ** *** ** * * * * * ** ***
* *** * **** ** * * * ** **** ** ** * * ***
** ****** ** ** ** **** ** ** 0;
* * * * ** * * ** ** ** * *
answered by (-122 points)
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:104.23.197.94
©2016-2026

Related questions

0 like 0 dislike
43 answers
[Normal] Coding (C) - asked Oct 11, 2016 in 2016-1 程式設計(一)AC by Shun-Po (18k points)
ID: 13025 - Available when: Unlimited - Due to: Unlimited
| 7.3k views
0 like 0 dislike
49 answers
[Normal] Coding (C) - asked Oct 11, 2016 in 2016-1 程式設計(一)AC by Shun-Po (18k points)
ID: 13023 - Available when: Unlimited - Due to: Unlimited
| 8.5k views
0 like 0 dislike
39 answers
[Normal] Coding (C) - asked Oct 11, 2016 in 2016-1 程式設計(一)AC by Shun-Po (18k points)
ID: 13020 - Available when: Unlimited - Due to: Unlimited
| 6.9k views
0 like 0 dislike
7 answers
[Exercise] Coding (C) - asked Oct 27, 2016 in 2016-1 程式設計(一)AC by Shun-Po (18k points)
ID: 15399 - Available when: 2016-10-27 18:30:00 - Due to: 2016-10-27 21:00:00
| 2k views
12,783 questions
183,442 answers
172,219 comments
4,824 users